macOS 27 will be unveiled in just a few weeks at WWDC, but Apple has already confirmed that the latest Mac software version will lack compatibility with at least four Mac models.

When macOS 27 ships to all users this fall, it will represent a pivotal transition point for Apple.

That’s because it will be the first macOS release that’s exclusive to Apple silicon Macs.

Last year at WWDC, Apple warned that this transition was coming. It said macOS Tahoe would be the last software version that supports Intel Macs.

That means the company already told us, a year in advance, that macOS 27 will drop support for the following Macs:

• MacBook Pro (16‑inch, 2019)
• MacBook Pro (13‑inch, 2020, Four Thunderbolt 3 ports)
• iMac (2020)
• Mac Pro (2019)

These four Macs are the last Intel models currently supported by macOS Tahoe. But when macOS 27 arrives, they won’t be able to install the new software.

Will any other models lose support? It’s highly unlikely. macOS 27 almost certainly won’t cut off compatibility for any Apple silicon models. M1 Macs are expected to at least have a couple more years of support ahead.

That said, we won’t have an official compatibility list from Apple until WWDC arrives. So for now, we can only say with certainty that at least four models will be dropped from macOS 27.

On a related note, rumors indicate iOS 27 will similarly drop four iPhone models this year.

Are you still running an Intel Mac? If so, will macOS 27 compatibility motivate you to upgrade? Let us know in the comments.

• AirPods Pro 3
• 100W USB-C fast charging power adapter
• tomtoc protective MacBook sleeve bag
• Twelve South aluminum laptop stand for MacBooks
• Anker Docking Station USB-C with Ethernet, HDMI, SD, more